mirror of
https://github.com/MariaDB/server.git
synced 2025-02-01 03:21:53 +01:00
934b831281
When an IN subquery predicate was converted to a semi-join that were materialized and the result of the materialization happened to be the last in the execution plan then any conjunctive condition with RAND() turned out to be lost. Fixed by attaching this condition to the last top base table.
285 lines
9.2 KiB
Text
285 lines
9.2 KiB
Text
#
|
|
# Run subselect_sj2.test with subquery materialization.
|
|
#
|
|
set optimizer_switch='materialization=on';
|
|
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
|
|
|
|
--source t/subselect_sj2.test
|
|
|
|
set optimizer_switch=default;
|
|
select @@optimizer_switch like '%materialization=on%';
|
|
|
|
--echo #
|
|
--echo # BUG#906385: EXPLAIN EXTENDED crashes in TABLE_LIST::print with limited max_join_size
|
|
--echo #
|
|
CREATE TABLE t1 ( a INT );
|
|
CREATE TABLE t2 ( b INT );
|
|
|
|
INSERT INTO t1 VALUES (1),(2);
|
|
INSERT INTO t2 VALUES
|
|
(1),(2),(3),(4),(5),
|
|
(6),(7),(8),(9),(10),
|
|
(11),(12),(13),(14),(15),
|
|
(16),(17),(18),(19),(20);
|
|
|
|
set @tmp_906385=@@max_join_size;
|
|
SET max_join_size = 80;
|
|
|
|
--error ER_TOO_BIG_SELECT
|
|
EXPLAIN EXTENDED
|
|
SELECT COUNT(*) FROM t1
|
|
WHERE a IN
|
|
( SELECT b FROM t2 GROUP BY b )
|
|
AND ( 6 ) IN
|
|
( SELECT MIN( t2.b ) FROM t2 alias1, t2 );
|
|
|
|
DROP TABLE t1, t2;
|
|
set max_join_size= @tmp_906385;
|
|
|
|
--echo #
|
|
--echo # mdev-3995: Wrong result for semijoin with materialization
|
|
--echo #
|
|
|
|
set @save_optimizer_switch=@@optimizer_switch;
|
|
|
|
CREATE TABLE t1 (
|
|
cat_id int(10) unsigned NOT NULL,
|
|
PRIMARY KEY (cat_id)
|
|
) ENGINE=MyISAM;
|
|
|
|
INSERT INTO t1 VALUES
|
|
(709411),(709412),(709413),(709414),(709416),(709417),(709418),(709419),(709421),(709422),
|
|
(709424),(709425),(709427),(709428),(709429),(709431),(709432),(709433),(709434),(709435),
|
|
(709438),(709439),(709441),(709442),(709443),(709444),(709445),(709446),(709447),(709450),
|
|
(709451),(709454),(709455),(709456),(709457),(709459),(709460),(709461),(709462),(709463),
|
|
(709464),(709465),(709467),(709469),(709470),(709471),(709472),(709473),(709474),(709475),
|
|
(709476),(709477),(709478),(709479),(709480),(709481),(709483),(709484),(709485),(709487),
|
|
(709490),(709491),(709492),(709493),(709494),(709495),(709496),(709497),(709498),(709499),
|
|
(709500),(709501),(709502),(709503),(709504),(709505),(709506),(709507),(709509),(709510),
|
|
(709511),(709512),(709513),(709514),(709515),(709516),(709517),(709518),(709519),(709520),
|
|
(709521),(709522),(709523),(709524),(709525),(709526),(709527),(709528),(709529),(709530),
|
|
(709531),(709532),(709533),(709534),(709535),(709536),(709537),(709538),(709539),(709540),
|
|
(709541),(709542),(709543),(709544),(709545),(709546),(709548),(709549),(709551),(709552),
|
|
(709553),(709555),(709556),(709557),(709558),(709559),(709560),(709561),(709562),(709563),
|
|
(709564),(709565),(709566),(709567),(709568),(709569),(709570),(709571),(709572),(709573),
|
|
(709574),(709575),(709576),(709577),(709578),(709579),(709580),(709581),(709582),(709583),
|
|
(709584),(709585),(709586),(709587),(709588),(709590),(709591),(709592),(709593),(709594),
|
|
(709595),(709596),(709597),(709598),(709600),(709601),(709602),(709603),(709604),(709605),
|
|
(709606),(709608),(709609),(709610),(709611),(709612),(709613),(709614),(709615),(709616),
|
|
(709617),(709618),(709619),(709620),(709621),(709622),(709623),(709624),(709625),(709626),
|
|
(709627),(709628),(709629),(709630),(709631),(709632),(709633),(709634),(709635),(709637),
|
|
(709638),(709639),(709640),(709641),(709642),(709643),(709644),(709645),(709646),(709649),
|
|
(709650),(709651),(709652),(709653),(709654),(709655),(709656),(709657),(709658),(709659);
|
|
|
|
CREATE TABLE t2 (
|
|
cat_id int(10) NOT NULL,
|
|
KEY cat_id (cat_id)
|
|
) ENGINE=MyISAM;
|
|
|
|
INSERT INTO t2 VALUES
|
|
(708742),(708755),(708759),(708761),(708766),(708769),(708796),(708798),(708824),(708825),
|
|
(708838),(708844),(708861),(708882),(708887),(708889),(708890),(709586),(709626);
|
|
|
|
CREATE TABLE t3 (
|
|
sack_id int(10) unsigned NOT NULL,
|
|
kit_id tinyint(3) unsigned NOT NULL DEFAULT '0',
|
|
cat_id int(10) unsigned NOT NULL,
|
|
PRIMARY KEY (sack_id,kit_id,cat_id)
|
|
) ENGINE=MyISAM;
|
|
|
|
INSERT INTO t3 VALUES
|
|
(33479,6,708523),(33479,6,708632),(33479,6,709085),(33479,6,709586),(33479,6,709626);
|
|
|
|
CREATE TABLE t4 (
|
|
cat_id int(10) unsigned NOT NULL,
|
|
KEY cat_id (cat_id)
|
|
) ENGINE=MyISAM;
|
|
|
|
INSERT INTO t4 (cat_id) SELECT cat_id from t2;
|
|
|
|
set optimizer_switch='materialization=off';
|
|
|
|
EXPLAIN
|
|
SELECT count(*) FROM t1, t3
|
|
WHERE t1.cat_id = t3.cat_id AND
|
|
t3.cat_id IN (SELECT cat_id FROM t2) AND
|
|
t3.sack_id = 33479 AND t3.kit_id = 6;
|
|
|
|
SELECT count(*) FROM t1, t3
|
|
WHERE t1.cat_id = t3.cat_id AND
|
|
t3.cat_id IN (SELECT cat_id FROM t2) AND
|
|
t3.sack_id = 33479 AND t3.kit_id = 6;
|
|
|
|
set optimizer_switch='materialization=on';
|
|
|
|
EXPLAIN
|
|
SELECT count(*) FROM t1, t3
|
|
WHERE t1.cat_id = t3.cat_id AND
|
|
t3.cat_id IN (SELECT cat_id FROM t4) AND
|
|
t3.sack_id = 33479 AND t3.kit_id = 6;
|
|
|
|
SELECT count(*) FROM t1, t3
|
|
WHERE t1.cat_id = t3.cat_id AND
|
|
t3.cat_id IN (SELECT cat_id FROM t4) AND
|
|
t3.sack_id = 33479 AND t3.kit_id = 6;
|
|
|
|
EXPLAIN
|
|
SELECT count(*) FROM t1, t3
|
|
WHERE t1.cat_id = t3.cat_id AND
|
|
t3.cat_id IN (SELECT cat_id FROM t2) AND
|
|
t3.sack_id = 33479 AND t3.kit_id = 6;
|
|
|
|
SELECT count(*) FROM t1, t3
|
|
WHERE t1.cat_id = t3.cat_id AND
|
|
t3.cat_id IN (SELECT cat_id FROM t2) AND
|
|
t3.sack_id = 33479 AND t3.kit_id = 6;
|
|
|
|
|
|
DROP TABLE t1,t2,t3,t4;
|
|
|
|
set optimizer_switch=@save_optimizer_switch;
|
|
|
|
--echo #
|
|
--echo # mdev-3913: LEFT JOIN with materialized multi-table IN subquery in WHERE
|
|
--echo #
|
|
|
|
set @save_optimizer_switch=@@optimizer_switch;
|
|
|
|
CREATE TABLE t1 (a1 char(1), b1 char(1), index idx(b1,a1));
|
|
INSERT INTO t1 VALUES ('f','c'),('d','m'),('g','y');
|
|
INSERT INTO t1 VALUES ('f','c'),('d','m'),('g','y');
|
|
|
|
CREATE TABLE t2 (a2 char(1), b2 char(1));
|
|
INSERT INTO t2 VALUES ('y','y'),('y','y'),('w','w');
|
|
|
|
CREATE TABLE t3 (a3 int);
|
|
INSERT INTO t3 VALUES (8),(6);
|
|
|
|
CREATE TABLE t4 (a4 char(1), b4 char(1));
|
|
INSERT INTO t4 VALUES ('y','y'),('y','y'),('w','w');
|
|
|
|
set optimizer_switch='materialization=off';
|
|
|
|
EXPLAIN EXTENDED
|
|
SELECT * FROM t1 LEFT JOIN t2 ON ( b1 = a2 )
|
|
WHERE ( b1, b1 ) IN ( SELECT a4, b4 FROM t3, t4);
|
|
SELECT * FROM t1 LEFT JOIN t2 ON ( b1 = a2 )
|
|
WHERE ( b1, b1 ) IN ( SELECT a4, b4 FROM t3, t4);
|
|
|
|
set optimizer_switch='materialization=on';
|
|
|
|
EXPLAIN EXTENDED
|
|
SELECT * FROM t1 LEFT JOIN t2 ON ( b1 = a2 )
|
|
WHERE ( b1, b1 ) IN ( SELECT a4, b4 FROM t3, t4);
|
|
SELECT * FROM t1 LEFT JOIN t2 ON ( b1 = a2 )
|
|
WHERE ( b1, b1 ) IN ( SELECT a4, b4 FROM t3, t4);
|
|
|
|
DROP TABLE t1,t2,t3,t4;
|
|
|
|
set optimizer_switch=@save_optimizer_switch;
|
|
|
|
--echo #
|
|
--echo # mdev-4172: LEFT JOIN with materialized multi-table IN subquery in WHERE
|
|
--echo # and OR in ON condition
|
|
--echo #
|
|
|
|
set @save_optimizer_switch=@@optimizer_switch;
|
|
|
|
CREATE TABLE t1 (a1 int, c1 varchar(1));
|
|
INSERT t1 VALUES (7,'v'), (3,'y');
|
|
|
|
CREATE TABLE t2 (c2 varchar(1));
|
|
INSERT INTO t2 VALUES ('y'), ('y');
|
|
|
|
CREATE TABLE t3 (c3 varchar(1));
|
|
INSERT INTO t3 VALUES
|
|
('j'), ('v'), ('c'), ('m'), ('d'),
|
|
('d'), ('y'), ('t'), ('d'), ('s');
|
|
|
|
CREATE TABLE t4 (a4 int, c4 varchar(1));
|
|
INSERT INTO t4 SELECT * FROM t1;
|
|
|
|
set optimizer_switch='materialization=off';
|
|
|
|
EXPLAIN EXTENDED
|
|
SELECT * FROM t1 LEFT JOIN t2 ON (c2 = c1 OR c1 > 'z')
|
|
WHERE c1 IN ( SELECT c4 FROM t3,t4 WHERE c3 = c4);
|
|
SELECT * FROM t1 LEFT JOIN t2 ON (c2 = c1 OR c1 > 'z')
|
|
WHERE c1 IN ( SELECT c4 FROM t3,t4 WHERE c3 = c4);
|
|
|
|
set optimizer_switch='materialization=on';
|
|
|
|
EXPLAIN EXTENDED
|
|
SELECT * FROM t1 LEFT JOIN t2 ON (c2 = c1 OR c1 > 'z')
|
|
WHERE c1 IN ( SELECT c4 FROM t3,t4 WHERE c3 = c4);
|
|
SELECT * FROM t1 LEFT JOIN t2 ON (c2 = c1 OR c1 > 'z')
|
|
WHERE c1 IN ( SELECT c4 FROM t3,t4 WHERE c3 = c4);
|
|
|
|
DROP TABLE t1,t2,t3,t4;
|
|
|
|
set optimizer_switch=@save_optimizer_switch;
|
|
|
|
--echo #
|
|
--echo # mdev-4177: materialization of a subquery whose WHERE condition is OR
|
|
--echo # formula with two disjucts such that the second one is always false
|
|
--echo #
|
|
|
|
set @save_optimizer_switch=@@optimizer_switch;
|
|
set @save_join_cache_level=@@join_cache_level;
|
|
|
|
CREATE TABLE t1 (i1 int) ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES (1), (7), (4), (8), (4);
|
|
|
|
CREATE TABLE t2 (i2 int) ENGINE=MyISAM;
|
|
INSERT INTO t2 VALUES (7), (5);
|
|
|
|
CREATE TABLE t3 (i3 int) ENGINE=MyISAM;
|
|
INSERT INTO t3 VALUES (7), (2), (9);
|
|
|
|
set join_cache_level=3;
|
|
|
|
set optimizer_switch='materialization=off,semijoin=off';
|
|
|
|
EXPLAIN EXTENDED
|
|
SELECT * FROM t1 WHERE i1 IN (SELECT i3 FROM t2, t3 WHERE i3 = i2 OR 1=2);
|
|
SELECT * FROM t1 WHERE i1 IN (SELECT i3 FROM t2, t3 WHERE i3 = i2 OR 1=2);
|
|
|
|
set optimizer_switch='materialization=on,semijoin=on';
|
|
|
|
EXPLAIN EXTENDED
|
|
SELECT * FROM t1 WHERE i1 IN (SELECT i3 FROM t2, t3 WHERE i3 = i2 OR 1=2);
|
|
SELECT * FROM t1 WHERE i1 IN (SELECT i3 FROM t2, t3 WHERE i3 = i2 OR 1=2);
|
|
|
|
EXPLAIN EXTENDED
|
|
SELECT * FROM t1
|
|
WHERE i1 IN (SELECT i3 FROM t2, t3 WHERE i3 > 0 AND i3 = i2 OR 1=2);
|
|
SELECT * FROM t1
|
|
WHERE i1 IN (SELECT i3 FROM t2, t3 WHERE i3 > 0 AND i3 = i2 OR 1=2);
|
|
SELECT * FROM t1
|
|
WHERE i1 IN (SELECT i3 FROM t2, t3 WHERE i3 > 7 AND i3 = i2 OR 1=2);
|
|
|
|
DROP TABLE t1,t2,t3;
|
|
|
|
set join_cache_level= @save_join_cache_level;
|
|
set optimizer_switch=@save_optimizer_switch;
|
|
|
|
--echo #
|
|
--echo # mdev-7791: materialization of a semi-join subquery +
|
|
--echo # RAND() in WHERE
|
|
--echo # (materialized table is accessed last)
|
|
--echo #
|
|
|
|
set @save_optimizer_switch=@@optimizer_switch;
|
|
set optimizer_switch='materialization=on';
|
|
|
|
create table t1(i int);
|
|
insert into t1 values (1), (2), (3), (7), (9), (10);
|
|
create table t2(i int);
|
|
insert into t2 values (1), (2), (3), (4), (5), (6), (7), (8), (9), (10);
|
|
|
|
select * from t1 where (rand() < 0) and i in (select i from t2);
|
|
explain extended
|
|
select * from t1 where (rand() < 0) and i in (select i from t2);
|
|
|
|
drop table t1,t2;
|
|
set optimizer_switch=@save_optimizer_switch;
|